Fix/zoom wheel delta scaling#35
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Remove stale eslint-disable comments and fix void-expression warnings from rete lint --fix. Co-authored-by: Cursor <cursoragent@cursor.com>
Scale wheel input by deltaMode, cap steps at intensity to preserve mouse wheel behavior, and skip zero deltas. Add zoom unit and handler tests. Fixes #31 Co-authored-by: Cursor <cursoragent@cursor.com>
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Description
Fixes jitter when zooming with a touchpad pinch while zoom restrictions are enabled (#31).
After #32, wheel zoom used
Math.sign(deltaY)only — any non-zerodeltaYtriggered a full±intensitystep. Touchpad pinch sends small fractional values (e.g.0.01–3), so each micro-movement caused a full zoom step and visible jitter at min/max zoom bounds.This PR:
deltaYviadeltaMode(PIXEL / LINE ×8 / PAGE ×24) inzoom-wheel.tsintensity(one mouse wheel click ≈ one step)deltaY === 0(gesture end / horizontal wheel)zoom-wheel.test.ts) and handler tests (zoom.test.ts) covering mouse, touchpad, and edge casesMouse behavior is unchanged: large wheel deltas (Chrome ~120px, Firefox 1 line) still produce
±intensityper click.Also includes a separate commit with lint auto-fixes (
style: apply lint auto-fixes) and addsnpm testscript.Related Issues
#31
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Additional Notes